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  • 1
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    Scaled Particle Theory for Multicomponent Hard Sphere Fluids Confined in Random Porous Media (2016)
    American Chemical Society (ACS)
    Details
    Publication Date: 2016-06-14
    Description: The Journal of Physical Chemistry B DOI: 10.1021/acs.jpcb.6b02957
    Electronic ISSN: 1520-5207
    Topics: Chemistry and Pharmacology , Physics
    Published by American Chemical Society (ACS)
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  • 2
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    Quantifying the complex permittivity and permeability of magnetic nanoparticles (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-04-10
    Description: The complex permittivity and permeability of superparamagnetic iron-oxide nanoparticles has been quantified using a circular waveguide assembly with a static magnetic field to align the nanoparticle's magnetization. The high sensitivity of the measurement provides the precise resonant feature of nanoparticles. The complex permeability in the vicinity of ferromagnetic resonance is in agreement with the nanoparticle's measured magnetization via conventional magnetometry. A rigorous and self-consistent measure of complex permittivities and permeabilities of nanoparticles is crucial to ascertain accurately the dielectric behaviour as well as the frequency response of nanoparticle magnetization, necessary ingredients when designing and optimizing magnetic nanoparticles for biomedical applications.
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics (AIP)
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  • 3
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    Experimental realization of negative refraction using one metasurface (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-03-26
    Description: A designed one metasurface metamaterial that can provide both negative permittivity and negative permeability and therefore a negative refractive index is experimentally realized in this work. Effective parameters are retrieved from the measured S parameters and are in good agreement with the numerical simulation data. Over our working frequency range, negative refractive index, index near zero, and positive index are all observed, which is confirmed by the two-dimensional wave propagation behaviour. This result can help simplify the design for negative refraction application and can further be used to fabricate negative index materials at optical wavelengths as well as three-dimensional metamaterials.
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics (AIP)
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  • 4
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    Structure of complement receptor 2 in complex with its C3d ligand (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-02
    Description: Complement receptor 2 (CR2/CD21) is an important receptor that amplifies B lymphocyte activation by bridging the innate and adaptive immune systems. CR2 ligands include complement C3d and Epstein-Barr virus glycoprotein 350/220. We describe the x-ray structure of this CR2 domain in complex with C3d at 2.0 angstroms. The structure reveals extensive main chain interactions between C3d and only one short consensus repeat (SCR) of CR2 and substantial SCR side-side packing. These results provide a detailed understanding of receptor-ligand interactions in this protein family and reveal potential target sites for molecular drug design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Szakonyi, G -- Guthridge, J M -- Li, D -- Young, K -- Holers, V M -- Chen, X S -- R0-1 CA53615/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2001 Jun 1;292(5522):1725-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Genetics, University of Colorado Health Science Center, School of Medicine, Denver, CO 80262, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11387479" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal ; Complement C3d/chemistry/genetics/*metabolism ; Consensus Sequence ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis ; Protein Conformation ; Protein Folding ; Protein Sorting Signals ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Complement 3d/*chemistry/immunology/*metabolism ; Recombinant Proteins/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Crystal structure of the anti-viral APOBEC3G catalytic domain and functional implications (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-10-14
    Description: The APOBEC family members are involved in diverse biological functions. APOBEC3G restricts the replication of human immunodeficiency virus (HIV), hepatitis B virus and retroelements by cytidine deamination on single-stranded DNA or by RNA binding. Here we report the high-resolution crystal structure of the carboxy-terminal deaminase domain of APOBEC3G (APOBEC3G-CD2) purified from Escherichia coli. The APOBEC3G-CD2 structure has a five-stranded beta-sheet core that is common to all known deaminase structures and closely resembles the structure of another APOBEC protein, APOBEC2 (ref. 5). A comparison of APOBEC3G-CD2 with other deaminase structures shows a structural conservation of the active-site loops that are directly involved in substrate binding. In the X-ray structure, these APOBEC3G active-site loops form a continuous 'substrate groove' around the active centre. The orientation of this putative substrate groove differs markedly (by 90 degrees) from the groove predicted by the NMR structure. We have introduced mutations around the groove, and have identified residues involved in substrate specificity, single-stranded DNA binding and deaminase activity. These results provide a basis for understanding the underlying mechanisms of substrate specificity for the APOBEC family.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2714533/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2714533/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Lauren G -- Prochnow, Courtney -- Chang, Y Paul -- Bransteitter, Ronda -- Chelico, Linda -- Sen, Udayaditya -- Stevens, Raymond C -- Goodman, Myron F -- Chen, Xiaojiang S -- R01 AI055926/AI/NIAID NIH HHS/ -- R01 AI055926-05/AI/NIAID NIH HHS/ -- England -- Nature. 2008 Nov 6;456(7218):121-4. doi: 10.1038/nature07357. Epub 2008 Oct 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Computational Biology, University of Southern California, Los Angeles, California 90089, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18849968" target="_blank"〉PubMed〈/a〉
    Keywords: Antiviral Agents ; *Catalytic Domain ; Crystallography, X-Ray ; Cytidine Deaminase/*chemistry/genetics/isolation & purification/*metabolism ; DNA, Single-Stranded/metabolism ; Escherichia coli ; Humans ; Models, Molecular ; Muscle Proteins/chemistry ; Mutant Proteins/chemistry/genetics/metabolism ; Mutation ; Nuclear Magnetic Resonance, Biomolecular ; Protein Structure, Secondary ; Structural Homology, Protein ; Structure-Activity Relationship ; Substrate Specificity
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 6
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    Theory and experiment on cavity magnon-polariton in the one-dimensional configuration (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-11-10
    Description: Author(s): B. M. Yao, Y. S. Gui, Y. Xiao, H. Guo, X. S. Chen, W. Lu, C. L. Chien, and C.-M. Hu We have theoretically and experimentally investigated the dispersion of the cavity-magnon-polariton (CMP) in a one-dimensional (1D) configuration, created by inserting a low damping magnetic insulator into a high-quality 1D microwave cavity. By simplifying the full-wave simulation based on the trans… [Phys. Rev. B 92, 184407] Published Mon Nov 09, 2015
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 7
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    Cooperative polariton dynamics in feedback-coupled cavities (2017)
    Springer Nature
    Details
    Publication Date: 2017-11-11
    Description: Cooperative polariton dynamics in feedback-coupled cavities Cooperative polariton dynamics in feedback-coupled cavities, Published online: 10 November 2017; doi:10.1038/s41467-017-01796-7 NatureArticleSnippet(type=short-summary, markup= Rabi oscillations of magnons typically do not have few photon control of single spin quantum systems. Here, the authors use a feedback cavity architecture to increase magnon-photon cooperativity, enabling increased control of light-matter interactions in magnonic systems via cooperative polariton dynamics. , isJats=true)
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 8
    Electronic Resource
    Electronic Resource
    The demixing and gas–liquid instability of a binary Yukawa fluid (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 97 (1992), S. 3696-3703 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: For a binary mixture we relate the second order expansion of the grand canonical potential Ω to direct correlation functions and to thermodynamic expressions. The matrix of second functional derivatives of Ω with respect to the particle density fluctuations is diagonalized. The zero of the smallest eigenvalue indicates a phase instability vs particle density fluctuations. The related eigenvector characterizes the instability uniquely. Calculations of correlation functions via the reference hypernetted chain integral equations are performed for a binary mixture of hard core particles with attractive Yukawa interactions; the spinodals are established for different concentrations and different interaction potentials using the calculated correlation functions. Along the spinodal we find a continuous change from predominantly demixing to mainly condensation instabilities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.462951
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  • 9
    Electronic Resource
    Electronic Resource
    The free energy and the chemical potential of molecular fluids (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 95 (1991), S. 2832-2837 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Expressions for the Helmholtz free energy and the chemical potential are derived for fluid mixtures with nonspherical interactions. For the important reference hypernetted chain (RHNC) approximation we can derive explicit formulas. We evaluate the free energy formula for a hard sphere dipole system. The results for the Helmholtz free energy agree well with Monte Carlo simulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.460935
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  • 10
    Electronic Resource
    Electronic Resource
    T"2-AlLiCu structure and its phase transition under heat treatment
    Amsterdam : Elsevier
    Solid State Communications 63 (1987), S. 951-954 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(87)90637-5
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